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Inprocess staff participates in congresses, meetings and events where we divulge our successes in the form of presentations, reports, journal papers or product brochures.
Some of our satisfied clients do also collaborate in a number of such publications. In this section you can find a series of different informative articles, free to download.
Don’t hesitate to request more information if needed.

Here you can find a number of different informative articles and reports.

Contribution to the Aspentech Users Group Meeting (Optimize2017) held in April 2017 in Houston, USA

This case study presentation shows a Dynamic Simulation Study (DSS) carried out for the Floating Production Storage and Offloading (FPSO) designed and operated by Yinson Production for the Eni’s OCTP development project in Ghana. The Aspen HYSYS Dynamics model was extensively used to run about 15 transient conditions (Start-up, Emergency Shutdown, Blocked inlet/outlet, load sharing, ramp-up, etc.) to verify the sizing, process layout, control layout, operating procedures, etc. During a second project stage, the detailed model was re-used to create a Lifecycle Direct-Connect Operator Training Simulator (OTS) by connecting it with the Integrated Control and Safety System (ICSS).

Miquel Angel Alós, Inprocess Services Director, explains how operations teams in the oil and gas industry can use dynamic simulation to avoid disruptions and minimise the impact of unnecessary costs on real plant operations

An Operator Training System (OTS) is one of the best methods to train staff in operations before a producing plant starts up. Carrying out this training before plant commissioning ensures a fast learning curve of the new process and control and instrumentation systems. Moreover, the operators can be exposed to emergency situations or process upsets that are not part of the daily operation. This will facilitate the operator response to normal and abnormal process conditions

Over the past 10 years the use of dynamic process simulation has been established as a reliable and effective tool to analyse transient behaviour of process systems.

Centrifugal compressor systems show performance characteristics that mainly depend on the operating point imposed on them by the process units and the connection piping around the compressor.

Large compression systems often have several compressors operating in parallel, with some of them in standby. Therefore, even in normal operation there are frquent start up and shut down operations while switching between compressors: to accommodate throughput changes, for example. The transient analysis of these operations is critical to evaluate the dynamic behaviour of the compressor system and the associated control and safety systems.

Flare and relief systems commonly found in processing plants in the oil, gas and petrochemical industries are constantly under examination.

New constructions, extension of existing plants or changes in safety regulations all require detailed analysis of several aspects of the flare and relief system. In many cases, steady state analysis will suffice; but more often than not, complex or marginal problems require dynamic analysis to resolve an apparently bottlenecked flare system. This approach has recently been successfully applied to analyse and improve the blow down strategy for an existing gas utilisation plant (GUP) owned and operated by Wintershall in Libya

There are different situations for which it is necessary to re-evaluate the capacity of a site\'s existing flare system. In general, this is necessary following a potential increase in flare load, e.g. when:- Relief Valves that currently blow to air and that need to be connected to the flare header,- Changes in regulation that redefine the scenarios for which the flare system has to be designed,- New plants that are connected to the existing flare header, or- Throughput increase / revamps of existing plants that might increase the flare load through higher hold-up or higher heat load.

In this article, the authors give an overview of the advantages of the approach of using dynamic simulation to calculate flare loads following API 521, give guidance on when and where to apply it, and describe a case study of a recent study at BPs Lingen refinery in Germany.

The estimation of relief loads from crude distillation units (CDUs) is quite complex due to the type of units, where composition is non constant all along the column and time. In this paper, the conventional way of calculating relief loads in steady state is compared with the results obtained appliying dynamic simulation to estimate such relieves in an atmospheric crude column

Presented at: Seminar for Advanced Industrial Control Applications (SAICA) in November 2007

Rigorous Simulation helps engineers to understand and identify process dynamics and interactions in a risk-free environment; in addition, it also allows the evaluation and tuning of advanced controllers before they are commissioned. A number of recent APC projects have benefited from this combined methodology, resulting in a better controller design, more accurate inferentials, less plant tests, more confidence with the controller models and an overall reduced risk. Suitability of the methodology for certain units and simulation myths and barriers are reviewed.

Inprocess Instructor Station (IIS) is the backbone of any Inprocess OTS. IIS is the glue that connects all other data nodes in our OTS solutions. Once configured, it enables the instructor to lead the Operator Training sessions.Additionally, with the Editor module, users can configure and customize OTS and develop specific ICSS interfaces.

ITOP is a new approach for training operators and young engineers in subjects like Process Engineering and Unit Operations. This approach combines process simulation based exercises with classroom training and motivates the attendees to experience complex theory through hands-on exercises.

Through ITOP the operators gain better process understanding, leading to increased plant reliability and improvement in overall operator performance, as well as improved ability to operate the plants in a safe way.

ITOP can be adapted to be aligned to support the company’s existing training strategy.

ITOP proves to the authorities the investment in operators knowledge to operate safely